Home / 755,812.09-1,042,972.81-416,280.34

Finding the Fourth Proportional to 755,812.09, 1,042,972.81 and 416,280.34

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Solution

The fourth proportional to 755,812.09, 1,042,972.81 and 416,280.34 is: 574,440.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,812.09 : 1,042,972.81 = 416,280.34 : x
  2. Step 2: Convert to fraction form
    755,812.09/1,042,972.81 = 416,280.34/x
  3. Step 3: Cross multiply
    755,812.09x = 1,042,972.81 × 416,280.34
  4. Step 4: Simplify right side
    755,812.09x = 434,169,075,957.56
  5. Step 5: Solve for x
    x = 434,169,075,957.56/755,812.09
  6. Step 6: Final answer
    x = 574,440.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.